Hook



FIG. 1 is a perspective view of a hook showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof, the bottom view being identical;

FIG. 4 is a left side view thereof, the right side view being identical;

FIG. 5 is a perspective view of a second embodiment of my design; and,

FIG. 6 is a perspective view of a third embodiment of my design.

The dashed lines in FIG. 6 are shown for environmental purposes only and form no part of the claimed design. The dotted lines shown in FIGS. 1, 2, 5, and 6 represent peripheries of the claimed design and form no part thereof. 

The ornamental design for a hook, as shown and described. 